15．Whenever we are in trouble，he always ______ to help us．（　�。�
A．suppliesB．givesC．affordsD．offfers

分析 無(wú)論什么時(shí)候我陷入麻煩，他總是會(huì)能夠主動(dòng)幫助我．

解答 答案D．
A項(xiàng)"供應(yīng)；提供"；B項(xiàng)"給予"；C項(xiàng)"給予，提供；買得起"；D項(xiàng)"給予，提供；拿出，出示"；動(dòng)詞短語(yǔ)"offer to do sth   主動(dòng)提出做某事，自告奮勇做某事"，根據(jù)句意"無(wú)論什么時(shí)候我陷入麻煩，他總是會(huì)能夠主動(dòng)幫助我"可知，D項(xiàng)符合語(yǔ)境，故選D．

點(diǎn)評(píng) 本題考查動(dòng)詞辨析．解答此類題目首先要讀懂句意，理解每個(gè)選項(xiàng)動(dòng)詞的意思，然后根據(jù)上下文語(yǔ)境鎖定合適的動(dòng)詞．平時(shí)要加強(qiáng)動(dòng)詞詞匯量的積累．

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